Conclusion: In summary, there is some weak evidence to suggest that several botanical extracts may be effective in reducing the appearance of skin aging but no evidence that this effect is enduring. Independent replications with larger, more diverse samples, longer treatment durations and more rigorous study designs are required to validate these preliminary findings.
PubMed 21087067 ↗Maca Root
People mainly take Maca Root for libido, energy, mood. Based on 34 first-hand reports and 3 meta-analyses & systematic reviews in the medical literature. Ranked #448 of 1,974 overall.
Of reports that state an outcome, 40% are positive.
What Maca Root does, according to users
Of the people who reported each effect, the share who said it got better.
1 more with fewer than 3 reports
What the research says
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
At least one meta-analysis, or 5+ randomized controlled trials. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: The results of our systematic review provide limited evidence for the effectiveness of maca in improving sexual function. However, the total number of trials, the total sample size, and the average methodological quality of the primary studies were too limited to draw firm conclusions. More rigorous studies are warranted.
PubMed 20691074 ↗Conclusion: Bupropion SR 150 mg/b.i.d. is the most effective pharmacological treatment for AISD in women, though the evidence quality is low. Further clinical trials focusing on women with rigorous methodologies are needed to strengthen these findings.
PubMed 39985829 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Had a morning 500 milligram and then at noon, another. Starting at 1pm felt a rush and had a low level "speed" feeling all day”
“maca root”
“From what I’ve read about maca, it’s great in low quality quantities. It’s not something you want to take regularly (like 2-3x week max) because it’ll further disrupt your hormones.”
“Their ADJB1 is a 96.58% match to Maca root powder.”
“it's a noticeable increase in mood, energy and aggression (in a good way, think testerone). Also, major increase in sex drive”
Other options for libido
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate